EP 1420764 B1 20170920 - MULTI-PART DENTAL BLEACHING SYSTEMS AND METHOD FOR BLEACHING TEETH USING SUCH SYSTEMS
Title (en)
MULTI-PART DENTAL BLEACHING SYSTEMS AND METHOD FOR BLEACHING TEETH USING SUCH SYSTEMS
Title (de)
MEHRTEILIGE ZAHNBLEICHSYSTEME UND VERFAHREN ZUM BLEICHEN VON ZÄHNEN MIT DIESEN SYSTEMEN
Title (fr)
SYSTEMES DE BLANCHIMENT DENTAIRE A PLUSIEURS PARTIES ET PROCEDE DE BLANCHIMENT DENTAIRE UTILISANT CES SYSTEMES
Publication
Application
Priority
- US 0225000 W 20020806
- US 92304901 A 20010806
- US 21238102 A 20020805
Abstract (en)
[origin: WO03013380A2] Dental bleaching systems that include a bleaching component and a neutralizing component which, when mixed together, yield a mixed composition having a desired bleaching activity and gel properties. The bleaching composition includes a suitable bleaching agent, such as aqueous hydrogen peroxide, in a concentration of about 3 % to about 95 % by weight of the bleaching composition component. The neutralizing component includes a strong particulate base mixed with a polymeric thickening agent. The neutralizing component is substantially water-free to prevent destruction of the gelling capability of the thickening agent by the base prior to formation of the mixed composition. The particulate base may include oxides, hydroxides or carbonates of alkali metals or alkaline earth metals. Maintaining the bleaching agent and neutralizing agent in separate components provides increased stability of both the bleaching agent and gelling (thickening) agent during storage and transport.
IPC 8 full level
A61K 8/00 (2006.01); A61K 9/20 (2006.01); A61K 6/00 (2006.01); A61K 8/18 (2006.01); A61K 8/22 (2006.01); A61K 8/25 (2006.01); A61K 8/31 (2006.01); A61K 8/34 (2006.01); A61K 8/36 (2006.01); A61K 8/365 (2006.01); A61K 8/39 (2006.01); A61K 8/41 (2006.01); A61K 8/64 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61K 8/86 (2006.01); A61Q 11/00 (2006.01); C11D 7/18 (2006.01)
CPC (source: EP)
A61K 8/22 (2013.01); A61K 8/31 (2013.01); A61K 8/345 (2013.01); A61K 8/8152 (2013.01); A61Q 11/00 (2013.01)
Citation (examination)
- DR. SC.NAT HANS RUDOLF CHRISTEN: "Grundlagen der allgemeinen und anorganischen Chemie", 1 January 1969, VERLAG SAUERLÄNDER AARAU
- "Merck Index", 1 January 1999
- DATABASE WIKIPEDIA "Pyrophosphoric Acid"
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated extension state (EPC)
AL LT LV MK RO SI
DOCDB simple family (publication)
WO 03013380 A2 20030220; WO 03013380 A3 20030821; AU 2002355418 B2 20061102; EP 1420764 A2 20040526; EP 1420764 A4 20060802; EP 1420764 B1 20170920; EP 3246003 A1 20171122; EP 3246003 B1 20210120; JP 2004537574 A 20041216; MX PA04001120 A 20040520
DOCDB simple family (application)
US 0225000 W 20020806; AU 2002355418 A 20020806; EP 02752717 A 20020806; EP 17001169 A 20020806; JP 2003518397 A 20020806; MX PA04001120 A 20020806